From: Joe Thornber <ejt@redhat.com>
Date: Wed, 15 Oct 2014 13:46:58 +0000 (+0100)
Subject: dm thin: direct dispatch when breaking sharing
X-Git-Tag: omap-for-v3.19/fixes-for-merge-window~22^2~34
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=23ca2bb6c6104db9d4cff4e33cbabee303c49d4d;p=pandora-kernel.git

dm thin: direct dispatch when breaking sharing

This use of direct submission in process_shared_bio() reduces latency
for submitting bios in the shared cell by avoiding adding those bios to
the deferred list and waiting for the next iteration of the worker.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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